﻿/*
 * FCKeditor - The text editor for Internet - http://www.fckeditor.net
 * Copyright (C) 2003-2009 Frederico Caldeira Knabben
 *
 * == BEGIN LICENSE ==
 *
 * Licensed under the terms of any of the following licenses at your
 * choice:
 *
 *  - GNU General Public License Version 2 or later (the "GPL")
 *    http://www.gnu.org/licenses/gpl.html
 *
 *  - GNU Lesser General Public License Version 2.1 or later (the "LGPL")
 *    http://www.gnu.org/licenses/lgpl.html
 *
 *  - Mozilla Public License Version 1.1 or later (the "MPL")
 *    http://www.mozilla.org/MPL/MPL-1.1.html
 *
 * == END LICENSE ==
 *
 * Scripts for the fck_select.html page.
 */

function Select( combo )
{
    var iIndex = combo.selectedIndex ;

    oListText.selectedIndex        = iIndex ;
    oListValue.selectedIndex    = iIndex ;

    var oTxtText    = document.getElementById( "txtText" ) ;
    var oTxtValue    = document.getElementById( "txtValue" ) ;

    oTxtText.value    = oListText.value ;
    oTxtValue.value    = oListValue.value ;
}

function Add()
{
    var oTxtText    = document.getElementById( "txtText" ) ;
    var oTxtValue    = document.getElementById( "txtValue" ) ;

    AddComboOption( oListText, oTxtText.value, oTxtText.value ) ;
    AddComboOption( oListValue, oTxtValue.value, oTxtValue.value ) ;

    oListText.selectedIndex = oListText.options.length - 1 ;
    oListValue.selectedIndex = oListValue.options.length - 1 ;

    oTxtText.value    = '' ;
    oTxtValue.value    = '' ;

    oTxtText.focus() ;
}

function Modify()
{
    var iIndex = oListText.selectedIndex ;

    if ( iIndex < 0 ) return ;

    var oTxtText    = document.getElementById( "txtText" ) ;
    var oTxtValue    = document.getElementById( "txtValue" ) ;

    oListText.options[ iIndex ].innerHTML    = HTMLEncode( oTxtText.value ) ;
    oListText.options[ iIndex ].value        = oTxtText.value ;

    oListValue.options[ iIndex ].innerHTML    = HTMLEncode( oTxtValue.value ) ;
    oListValue.options[ iIndex ].value        = oTxtValue.value ;

    oTxtText.value    = '' ;
    oTxtValue.value    = '' ;

    oTxtText.focus() ;
}

function Move( steps )
{
    ChangeOptionPosition( oListText, steps ) ;
    ChangeOptionPosition( oListValue, steps ) ;
}

function Delete()
{
    RemoveSelectedOptions( oListText ) ;
    RemoveSelectedOptions( oListValue ) ;
}

function SetSelectedValue()
{
    var iIndex = oListValue.selectedIndex ;
    if ( iIndex < 0 ) return ;

    var oTxtValue = document.getElementById( "txtSelValue" ) ;

    oTxtValue.value = oListValue.options[ iIndex ].value ;
}

// Moves the selected option by a number of steps (also negative)
function ChangeOptionPosition( combo, steps )
{
    var iActualIndex = combo.selectedIndex ;

    if ( iActualIndex < 0 )
        return ;

    var iFinalIndex = iActualIndex + steps ;

    if ( iFinalIndex < 0 )
        iFinalIndex = 0 ;

    if ( iFinalIndex > ( combo.options.length - 1 ) )
        iFinalIndex = combo.options.length - 1 ;

    if ( iActualIndex == iFinalIndex )
        return ;

    var oOption = combo.options[ iActualIndex ] ;
    var sText    = HTMLDecode( oOption.innerHTML ) ;
    var sValue    = oOption.value ;

    combo.remove( iActualIndex ) ;

    oOption = AddComboOption( combo, sText, sValue, null, iFinalIndex ) ;

    oOption.selected = true ;
}

// Remove all selected options from a SELECT object
function RemoveSelectedOptions(combo)
{
    // Save the selected index
    var iSelectedIndex = combo.selectedIndex ;

    var oOptions = combo.options ;

    // Remove all selected options
    for ( var i = oOptions.length - 1 ; i >= 0 ; i-- )
    {
        if (oOptions[i].selected) combo.remove(i) ;
    }

    // Reset the selection based on the original selected index
    if ( combo.options.length > 0 )
    {
        if ( iSelectedIndex >= combo.options.length ) iSelectedIndex = combo.options.length - 1 ;
        combo.selectedIndex = iSelectedIndex ;
    }
}

// Add a new option to a SELECT object (combo or list)
function AddComboOption( combo, optionText, optionValue, documentObject, index )
{
    var oOption ;

    if ( documentObject )
        oOption = documentObject.createElement("OPTION") ;
    else
        oOption = document.createElement("OPTION") ;

    if ( index != null )
        combo.options.add( oOption, index ) ;
    else
        combo.options.add( oOption ) ;

    oOption.innerHTML = optionText.length > 0 ? HTMLEncode( optionText ) : '&nbsp;' ;
    oOption.value     = optionValue ;

    return oOption ;
}

function HTMLEncode( text )
{
    if ( !text )
        return '' ;

    text = text.replace( /&/g, '&amp;' ) ;
    text = text.replace( /</g, '&lt;' ) ;
    text = text.replace( />/g, '&gt;' ) ;

    return text ;
}


function HTMLDecode( text )
{
    if ( !text )
        return '' ;

    text = text.replace( /&gt;/g, '>' ) ;
    text = text.replace( /&lt;/g, '<' ) ;
    text = text.replace( /&amp;/g, '&' ) ;

    return text ;
}
